import router from './router'
import store from './store'
import {
	Message
} from 'element-ui'
import NProgress from 'nprogress'
import 'nprogress/nprogress.css'
import {
	getToken
} from '@/utils/auth'
import {
	isRelogin
} from '@/utils/request'

NProgress.configure({
	showSpinner: false
})

const whiteList = ['/login', '/register']

router.beforeEach((to, from, next) => {
	NProgress.start()
	if (getToken()) {
		to.meta.title && store.dispatch('settings/setTitle', to.meta.title)
		/* has token*/
		if (to.path === '/login') {
			next({
				path: '/'
			})
			NProgress.done()
		} else if (whiteList.indexOf(to.path) !== -1) {
			next()
		} else {
			if (store.getters.roles.length === 0) {
				isRelogin.show = true
				// 判断当前用户是否已拉取完user_info信息
				store.dispatch('GetInfo').then(() => {
					isRelogin.show = false
					store.dispatch('GenerateRoutes').then(accessRoutes => {
						// 根据roles权限生成可访问的路由表
						router.addRoutes(accessRoutes) // 动态添加可访问路由表
						next({
							...to,
							replace: true
						}) // hack方法 确保addRoutes已完成
					})
				}).catch(err => {
					store.dispatch('LogOut').then(() => {
						Message.error(err)
						next({
							path: '/'
						})
					})
				})
			} else {
				next()
			}
		}
	} else {
		// 没有token
		if (whiteList.indexOf(to.path) !== -1) {
			//在免登录白名单，直接进入
			next()
		} else {
			next(`/login?redirect=${encodeURIComponent(to.fullPath)}`) // 否则全部重定向到登录页
			NProgress.done()
		}
	}
})

router.afterEach(() => {
	NProgress.done()
})